package fairsharing;

import java.util.concurrent.CountDownLatch;

public class T0CacheLinePading {
    static  long COUNT = 10_0000_0000L;

    private static class T {
        private long p1,p2,p3,p4,p5,p6,p7;
        public long x = 0L; //8byte
        private long p9,p10,p11,p12,p13,p14,p15;
    }

    public static T[] arr = new T[2];

    static {
        arr[0] = new T();
        arr[1] = new T();
    }

    public static void main(String[] args) throws InterruptedException {
        CountDownLatch latch = new CountDownLatch(2);
        Thread t1 = new Thread(()->{
            for (long i = 0; i < COUNT; i++) {
                arr[0].x = i;
            }
            latch.countDown();
        });
        Thread t2 = new Thread(()->{
            for (long i = 0; i < COUNT; i++) {
                arr[1].x = i;
            }
            latch.countDown();
        });

        final  long start = System.nanoTime();
        t1.start();
        t2.start();
        latch.await();
        System.out.println((System.nanoTime() - start) / 100_0000);

    }
}
